640676322

素因数分解:

$2^1\times 3^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{248903}}^1$

素因数の和:248935

約数の個数: 48

約数和(自身を含む): 1630819008

約数和(自身を除く): 990142686

約数列:

[1, 2, 3, 6, 9, 11, 13, 18, 22, 26, 33, 39, 66, 78, 99, 117, 143, 198, 234, 286, 429, 858, 1287, 2574, 248903, 497806, 746709, 1493418, 2240127, 2737933, 3235739, 4480254, 5475866, 6471478, 8213799, 9707217, 16427598, 19414434, 24641397, 29121651, 35593129, 49282794, 58243302, 71186258, 106779387, 213558774, 320338161, 640676322]

約数ペア:

[(1, 640676322), (2, 320338161), (3, 213558774), (6, 106779387), (9, 71186258), (11, 58243302), (13, 49282794), (18, 35593129), (22, 29121651), (26, 24641397), (33, 19414434), (39, 16427598), (66, 9707217), (78, 8213799), (99, 6471478), (117, 5475866), (143, 4480254), (198, 3235739), (234, 2737933), (286, 2240127), (429, 1493418), (858, 746709), (1287, 497806), (2574, 248903)]